{
  // F5 BIG-IP APM (VPN/Access) parser — OCSF v1.3.0
  attributes: {
    "metadata.version":             "1.3.0",
    "metadata.product.vendor_name": "F5",
    "metadata.product.name":        "BIG-IP APM",
    "metadata.log_provider":        "syslog",
    "Category":               "iam",
    "dataSource.vendor":      "F5",
    "dataSource.name":        "BIG-IP APM",
    "dataSource.category":    "vpn",
    "category_uid":           3,
    "category_name":          "IAM",
    "class_uid":              3005,
    "class_name":             "User Access Management",
    "activity_id":            1,
    "type_uid":               300501,
    "status_id":              1,
    "severity_id":            1
  },

  patterns: {
    ipv4: "\\d+\\.\\d+\\.\\d+\\.\\d+",
    word: "\\S+",
    untilC: "[^\\n]*?",
    rest: ".*"
  },

  formats: [
    // Session authentication failed → Detection Finding (HIGH)
    {
      id: "apm_auth_fail",
      attributes: {
        class_uid: 2004, class_name: "Detection Finding",
        category_uid: 2, category_name: "Findings",
        type_uid: 200401,
        finding_title: "F5 APM Authentication Failure",
        severity_id: 4, severity: "High",
        disposition_id: 2, disposition: "Blocked",
        status_id: 2, status: "Failure"
      },
      format: ".*Session authentication failed - User: $user_name=word$ Client IP: $src_ip=ipv4$.*",
      halt: true
    },

    // Access policy denied → Detection Finding
    {
      id: "apm_access_deny",
      attributes: {
        class_uid: 2004, class_name: "Detection Finding",
        category_uid: 2, category_name: "Findings",
        type_uid: 200401,
        finding_title: "F5 APM Access Policy Deny",
        severity_id: 4, severity: "High",
        disposition_id: 2, disposition: "Blocked"
      },
      format: ".*Access policy result: Deny.*$reason=rest$",
      halt: true
    },

    // New session created
    {
      id: "apm_new_session",
      attributes: {
        class_uid: 3005, class_name: "User Access Management",
        type_uid: 300501
      },
      format: ".*New session created - Client IP: $src_ip=ipv4$.*",
      halt: true
    },

    // Successful AD auth
    {
      id: "apm_ad_success",
      attributes: {
        class_uid: 3002, class_name: "Authentication",
        activity_id: 1, type_uid: 300201,
        status_id: 1, status: "Success"
      },
      format: ".*AD Auth query - User: $user_name=word$ Domain: $domain=word$.*Result: Success.*",
      halt: true
    }
  ]
}